REMA

We do not require another tech to perform another verification of blood type just to use the computer for crossmatching.  The computer is set up to require two ABORh's.  Our policy is that we require two separate draws by two different phlebotomists when we have a patient that our computer system has never seen.  The first ABORh is performed by our automated platform on one of the samples and then a technologist performs the second ABORh on the second sample.  Our computer system, and I would hope yours too, keeps that historic information for the next time the same patient visits.  The second time that patient arrives in our institution, we only draw one sample for testing and perform the ABORh.  At this time, our computer recognizes the historic blood type and the current (i.e. Two ABORh's are present for computer crossmatching).  If the patient meets our other criteria, then we are able to perform computer crossmatch.  FDAEXM_Guidance.pdf
I am not aware of any regulatory or accreditation requirements that state testing needs to be performed the way you describe your current process.